It’s a commonly accepted fact: Facebook knows far too much information about us. Millions of people willfully tell Zuckerberg and his team of cronies what they like, what they hate, who they have a crush on, which school they went to, and a whole lot more.

And let’s not mention people’s strange desire to post photographs of everything from their dinner to their vacation.

Is Someone Accessing Your Facebook Account?

Okay; so, we all agree that if someone has unauthorized access to your Facebook account, it’s bad news. If you don’t react quickly, it probably won’t end well.

But how do you know if someone else is accessing your account?

Luckily, Facebook has made it easy to uncover the truth. In fact, the feature has been present for almost five years – but Facebook doesn’t do a good job of letting you know about it. Several people whom I spoke to didn’t know it existed.

To begin, log in to your account and click on the small arrow in the upper-right corner of the title bar. You will see a menu like the one below. You need to select Settings.

Once the Settings page has loaded, locate Security and login on the panel on the left-hand side of the screen.

The website will take you to the recently-redesigned security page. On this page, you will find lots of features to prevent someone gaining access to your account again in the future. For now, we’re only interested in the Where you’re logged in section.

You will see a list of all the devices and locations which are currently authorized to access your account. Make sure you click on See more to view the full list.

You might notice some devices which look suspicious, but that aren’t anything to worry about on closer inspection.

For example, check out my list of locations above. I have not been to Mexico City or Toluca on those dates, but I do own a Moto G5. Therefore, I can be confident this is an IP glitch from my ISP or mobile carrier, rather than someone impersonating me.

Removing a Device

If you see something that looks suspicious, you can use this list to revoke its access.

To revoke access, click on the three vertical dots next to the device you want to remove. A new menu will pop up. You can either select Not you? or Log out.

If you click on Not You? Facebook will block the device in question and take you through some steps to secure your account (more on those shortly). If you click Log out, the access will be revoked, but the unauthorized person could potentially log in again if they know your password.

If you just want to start afresh, scroll down to the bottom of your list of devices and click on Log out of all sessions.

Prevent the Problem

Once you’ve revoked the unauthorized person’s access, you need to take steps to make sure it doesn’t happen again.

Of course, the first step is to change your password. You can do so by heading to Settings > Security and login > Login > Change password. You will need to enter your old password to complete the process.

To turn on two-factor authentication, go to Settings > Security and login Settings > Security and login > Set up two-factor authentication.

You should also set up alerts for unrecognized logins. By enabling the feature, Facebook will notify you if it sees a login from a suspicious source. It will allow you to react more quickly in the event of a breach.

To set up the feature, go to Settings > Security and login > Setting up extra security > Get alerts about unrecognized logins. Expand the box, and mark the checkboxes next to either Get notifications or Email login alerts to [address] (or both), depending on your preferences. Hit Save changes when you’re ready.

Has Your Facebook Account Been Breached?

Let’s quickly summarize what we have learned:

You can check if someone else is accessing your account by going to Settings > Security and login > Where you’re logged in

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Chad

January 23, 2018 at 12:03 am

Sometimes when I'm on the security and log in page, it'll have a different look. One time it'll give me the option of tapping the device that's logged in and I can see an IP address. Others times it'll look completely different on the same page and I also won't have the option of seeing the IP address. It's weird. Why would this happen?

Hi. I have had every single account hacked into. I have had my computer, including 2 MAC computers brand new...myemails.. Facebook accounts.. etc.. i mean everything over the last year and half. My first FB page is still on there just sitting there. I cannot access it. I tried to get whole of FB sending them all my ice duty info etc.. but they reply wrong dept. I finally set up a new page months later and now that page is completely deleted. I have had a new dummie account created with my phone number attached. Any advice on how to contact FB?

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Dan is a British expat living in Mexico. He is currently the Social Editor for MakeUseOf. He was formerly the Creative Editor and Finance Editor. Prior to his writing career, he was a Financial Consultant. He holds various certifications from the University of Leeds, the University of Cambridge, and the…